HD 60532

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Template:Short description

HD 60532
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Puppis
Right ascension Template:RA[1]
Declination Template:DEC[1]
Apparent magnitude (V) 4.450[2]
Characteristics
Spectral type F6 IV-V[3]
U−B Template:Engvar +0.07[4]
B−V Template:Engvar +0.51[4]
Astrometry
Radial velocity (Rv)+61.042±0.0004[5] km/s
Proper motion (μ) RA: −40.180 mas/yr[1]
Dec.: +46.791 mas/yr[1]
Parallax (π)38.1379±0.1087 mas[1]
DistanceTemplate:Rnd ± Template:Rnd ly
(Template:Rnd ± Template:Rnd pc)
Absolute magnitude (MV)2.40[2]
Details
Mass1.44Script error: No such module "Su".[6] Template:Solar mass
Radius2.66±0.03[7] Template:Solar radius
Luminosity9.3±0.1[7] Template:Solar luminosity
Surface gravity (log g)3.75±0.02[7] cgs
Temperature6,095[6] K
Metallicity [Fe/H]−0.42[6] dex
Rotational velocity (v sin i)8[6] km/s
Age2.7±0.1[6] Gyr
Metallicity [Fe/H]{{{metal_fe2}}} dex
Other designations
Template:Odlist[8][9][10]
Database references
SIMBADdata
Exoplanet Archivedata
ARICNSdata

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HD 60532 is a star with two orbiting exoplanets in the southern constellation of Puppis. The designation HD 60532 takes its name from the Henry Draper Catalogue. The system is located at a distance of 85.5 light years from the Sun, and is drifting further away with a radial velocity of 61 km/s.[5] At that distance, the star has an apparent visual magnitude of 4.45,[2] which is bright enough to be faintly visible to the naked eye. The motion of this system through space brought it within Script error: No such module "convert". of the Sun some 408,600 years ago.[11]

The spectrum of this star shows blended features of an F-type main-sequence star and an evolving subgiant star, with a corresponding stellar classification of F6 IV-V.[3] It is an estimated 2.7 billion years old with a projected rotational velocity of 8 km/s and a low level of magnetic activity in its chromosphere.[6] The star has 1.44[6] times the mass of the Sun and 2.66 times the Sun's radius.[7] The abundance of iron, a measure of the star's metallicity, is a scant 38% of solar.[6] HD 60532 is radiating 9.3[7] times the luminosity of the Sun from its photosphere at an effective temperature of 6,095 K.[6]

Planetary system

In September 2008, two Jupiter-like planets were found orbiting the star.[6] The orbital periods of these two planets appear to be in 3:1 resonance.[12]

Template:OrbitboxPlanet begin Template:OrbitboxPlanet Template:OrbitboxPlanet

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See also

References

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External links

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Template:Sky Template:Stars of Puppis